DialogFragment在android 3.0时被引入。是一种特殊的Fragment,用于在Activity的内容之上展示一个模态的对话框。典型的用于:展示警告框,输入框,确认框等等。

在DialogFragment产生之前,我们创建对话框:一般采用AlertDialog和Dialog。注:官方不推荐直接使用Dialog创建对话框。

先来看个DialogFragment的定义

 1 public class MyDialogFragment extends DialogFragment {
 2     @Nullable
 3     @Override
 4     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
 5           getDialog().requestWindowFeature(Window.FEATURE_NO_TITLE);//取消标题栏
 6           return  inflater.inflate(R.layout.dialog_layout,null);
 7     }
 8 
 9     @NonNull
10     @Override
11     public Dialog onCreateDialog(Bundle savedInstanceState) {
12         return new AlertDialog.Builder(getActivity()).setIcon(R.mipmap.ic_launcher).setTitle("标题").setMessage("hhhhhhhhhhhhhhhh").setPositiveButton("确认", new DialogInterface.OnClickListener() {
13             @Override
14             public void onClick(DialogInterface dialog, int which) {
15 
16             }
17         }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
18             @Override
19             public void onClick(DialogInterface dialog, int which) {
20 
21             }
22         }).create();
23     }
24 }

onCreateView:解析一个布局文件到Dialog中 onCreateDialog:添加一个AlertDialog到Dialog中

两个方法重写一个即可,正常人一般都不会两个都重写吧?貌似会报错。。。。。

Dialog与Activity交互

自定义一个接口,Activity实现该接口,将getActivity()强转成该接口即可。

   public Dialog onCreateDialog(Bundle savedInstanceState) {
            View v=LayoutInflater.from(getActivity()).inflate(R.layout.dialog_layout,null);
        final EditText username= (EditText) v.findViewById(R.id.username);
        final EditText password= (EditText) v.findViewById(R.id.password);
        return new AlertDialog.Builder(getActivity()).setView(v).setIcon(R.mipmap.ic_launcher).setTitle("标题").setPositiveButton("确认", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Log.i("com.alger","po+"+which);
                ((ILoginListener)getActivity()).Login(username.getText().toString(),password.getText().toString());
            }
        }).setNegativeButton("取消", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                Log.i("com.alger","ne+"+which);
            }
        }).create();
    }

http://blog.csdn.net/huangyabin001/article/details/30053835

Dialog位置动画等参考 :http://blog.csdn.net/maxwell0401/article/details/52336893

posted on 2016-08-30 14:25  向着大牛奋斗  阅读(1374)  评论(0编辑  收藏  举报